Vertical mounted circuit board connector

ABSTRACT

This invention provides a device for plugging a coaxial cable into a circuit board. More particularly a double sleeved connector is provided where one sleeve carries three legs solderable into the board and the second sleeve receives and retains a ground contact crimped onto the braided shield of the coaxial cable. The center conductor, extending through the ground contact is received in a hole in the board directly below the connector.

United States Patent [191 Stull 1451 Oct. 7, 1975 541 VERTICAL MOUNTEDCIRCUIT BOARD CONNECTOR 75 Inventor: Robert Stanley Stull,

' Mechanicsburg, Pa.

[73] Assignee: AMP Incorporated, Harrisburg, Pa.

[22] Filed: Feb. 7, 1975 [21-] Appl. No.: 548,055

Related U.S. Application Data 7 [62] Division of Ser. No. 423,941, Dec.12, 1973,

abandoned.

52 U.S. C1. 339/17 C; 339/177 R [51 Int. C1. 1105K 1/00; l-lOlR 17/18 58Field 61 Search 339/17 R, 17 c, 17 LC, 339/176 R, 177 R, 177 E, 177 L,223, 183, g 5 256, 25s

56 References Cited UNITED STATES PATENTS 2,163,771 6/1939 Alden 339/258TC 3,128,143 4/1964 Sitzler 339/223 R 3,742,425 6/1973 Peltola et al.339/17 R 3,824,528 Esser 339/177 R FOREIGN PATENTS OR APPLICATIONS876,056 8/1961 United Kingdom 339/17 R 833,639 4/1960 UnitedKingdom...., 339/17 R OTHER PUBLICATIONS H. P. Bymes & H. C. Schick;Electrical P/N Contact;

IBM Technical Disclosure Bulletin, Vol. 6, No. 8, p. 86; Jan. 1964.

Primary Examiner.loseph H. McGlynn Assistant Examiner--Craig R. FeinbergAttorney, Agent, or FirmAllan B. Osborne [5 7] ABSTRACT This inventionprovides a device for plugging a coaxial Cable into a circuit board.More particularly a double sleeved connector is provided where onesleeve carries three legs solderable intothe board and the second sleevereceives and retains a ground contact crimped onto the braided shield ofthe coaxial cable. The center conductor, extending through the groundContact is received in a hole in the board directly below the connector.

2 Claims, 2 Drawing Figures US. Patent Oct. 7,1975 3,910,665

VERTICAL MOUNTED CIRCUIT BOARD CONNECTOR This is a division ofapplication Ser. No. 423,941, filed Dec. 12, 1973, now abandoned.

BACKGROUND OF THE INVENTION The connecting or terminating of coaxial.cable to a circuit board requires the terminating of two parallelconductors; i.e., the outer braided shield and the center conductor.Besides providing a reliable termination the connector must maintain thecharacteristic impedance of the coaxial cable. One such connector isshown in U.S. Pat. No. 3,742,425, the disclosure of which isincorporated herein by reference.

In addition to maintaining the integrity of the cable, it is desirableto provide a connector which is easily manufactured.

It is therefore one object of the present invention to provide animproved cable connector of simple and inexpensive construction.

Other objects and advantages of the present invention will be apparentfrom the following detailed description of the preferred embodimentthereof.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a circuit board and twovertical mounted circuit board connectors, one exploded over the boardand the other assembled therein; and

FIG. 2 is a top plan view of the connector of FIG. 1.

DESCRIPTION OF THE PREFERRED EMBODIMENT The circuit board in FIG. 1 isdevoid of the etched circuits and components normally seen on such aboard for reasons of clarity. The board contains two sets of holes toillustrate the present invention. Each set contains a large center hole12 partly surrounded by three smaller ground signal holes 14. The centerhole 12 contains a conventional spring socket member 16 to receive thecenter conductor 18 of coaxial cable 20.

In addition to center conductor 18, cable 20 includes a braided shield(not seen) with a dielectric (not seen) between the center conductor andthe shield. An electrical terminal 22 is crimped onto the braided shieldand the outer insulating jacket 24 of the cable. This terminal 22 isconstructed in accordance with the preferred embodiment described inpending U.S. application Ser. No. 325,705 which application isincorporated herein by reference. As the drawing shows, the centerconductor 18 extends beyond terminal 22.

The vertical mounted circuit board connector 26 consists of a singleitem stamped from a coplanar sheet of conductive metal (not shown) andformed into the shape shown. Generally, the connector resembles thefigure 8 as seen in the top plan view of FIG. 2. One loop, hereinreferred to as the first tubular sleeve 28 carries on its base edge 30three legs 32, 34 and 36. Legs 32 and 34 are identical and project outand away from sleeve 28 at about 120 relative to the third leg 36 whichcan barely be seen. Legs 3234 consist of a support portion 38 which isgenerally perpendicular to the longitudinal axis of the connector and apin 40 which depends from near the free end of the support portion. Thethird leg 36 consists only of a pin 40 (not seen) which dependsdownwardly directly from the base of sleeve 28. The pins, when insertedinto holes 14 electrically contact a ground conductor strip (not shown)on the underside of board 10.

The second tubular sleeve 42 is split from top to bottom to provide somedegree of flexibility to the walls defining the sleeve. This slot 44enables the second sleeve in cooperation with first sleeve 28 toresiliently engage the shield portion 46 of the terminal 22 with aspring-like action. In addition to imparting spring characteristics tothe second sleeve,'the first sleeve provides strength to the connectorfor mating purposes.

In operation, connector 26 is fastened to the circuit board 10 bysoldering pins 40 into holes 14. The cable, its braided shieldterminated in the manner seen is pushed into second sleeve 42 so thatcenter conductor 18 is received in the spring socket member 16 in hole12. The second sleeve receives the shield portion 46 of terminal 22, andin so doing connects the shield to the aforementioned ground conductorstrip via legs 32-36 and pins 40.

The foregoing detailed description has been given for cleamess ofunderstanding only, and no unnecessary limitations should be understoodtherefrom, as some modifications will be ovbious to those skilled in theart.

What is claimed is:

1. An electrical connector apparatus; comprising:

a. a coaxial cable having a braided outer shield, a center conductor anda dielectric between the shield and center conductor;

b. a terminal member having a portion crimped around the braided shieldof said cable;

c. a circuit board;

d. a connector having a first tubular sleeve carrying leg membersthereon, said leg members attached to the circuit board, and a secondtubular sleeve parallel to the first and integral th'erewith, saidsecond sleeve resiliently engaging said portion of the terminal engagingthe braided shield and the center conductor of the cable extending intothe circuit board.

2. A connection comprising: i

a. a printed circuit board having a first aperture and at least threesecond apertures spaced from and surrounding the first aperture on atleast three sides;

b. a connector, stamped and formed from a single coplanar sheet ofconductive material, having a first sleeve with one pin dependingdirectly downwardly therefrom and two legs projecting radially outwardlywith each leg having apin depending downwardly therefrom, said threepins being positioned in the three second apertures in the printedcircuit board, said connector further, having a second sleeve positionedto one side of the first sleeve, the walls of the first sleeve providingspring members for lateral movement by the walls of the second sleeve;and i a coaxial cable having a terminal crimped onto its braided shieldpositioned in said second sleeve with the walls thereof encompassing theterminal and the center conductor of the cable extending beyond theterminal and positioned in the first aperture in the printed circuitboard.

1. An electrical connector apparatus; comprising: a. a coaxial cablehaving a braided outer shield, a center conductor and a dielectricbetween the shield and center conductor; b. a terminal member having aportion crimped around the braided shield of said cable; c. a circuitboard; d. a connector having a first tubular sleeve carrying leg membersthereon, said leg members attached to the circuit board, and a secondtubular sleeve parallel to the first and integral therewith, said secondsleeve resiliently engaging said portion of the terminal engaging thebraided shield and the center conductor of the cable extending into thecircuit board.
 2. A connection comprising: a. a printed circuit boardhaving a first aperture and at least three second apertures spaced fromand surrounding the first aperture on at least three sides; b. aconnector, stamped and formed from a single coplanar sheet of conductivematerial, having a first sleeve with one pin depending directlydownwardly therefrom and two legs projecting radially outwardly witheach leg having a pin depending downwardly therefrom, said three pinsbeing positioned in the three second apertures in the printed circuitboard, said connector further having a second sleeve positioned to oneside of the first sleeve, the walls of the first sleeve providing springmembers for lateral movement by the walls of the second sleeve; and c. acoaxial cable having a terminal crimped onto its braided shieldpositioned in said second sleeve with the walls thereof encompassing theterminal and the center conductor of the cable extending beyond theterminal and positioned in the first aperture in the printed circuitboard.